. >> jenna, it was almost 30 years ago when 10-year-old kevin collins disappeared after school. his case went cold. investigators now say they have new leads. he was a student at st. agnus in the haight-ashbury district of san francisco. at the time two witnesses reported seeing kevin on sonic avenue with a man sittings on a stoop with a large black dog. he was described as white, six feet tall with blond hair. investigators are focused on a man who died five years ago. he was wayne jackson. he had five different identities and a criminal record. he was convicted of child molestation in 1981. that is three years before kevin's disappearance. police recently discovered he was accused of kidnapping and sexually assaulting two 13-year-old boys in canada. he lived across the street from the school and he owned a large black dog. at time of course, police searched jackson's home but they didn't find anything. but last week investigators earned to that home where jackson used to live. cadaver dog a reacted to an area of the garage. that area was he can can straighted and bones were fo